
// Copyright 2024-present the vsag project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <fstream>

#include "./exporter.h"

namespace vsag::eval {

class AppendfileExporter : public Exporter {
public:
    bool
    Export(const std::string& formatted_result) override {
        std::ofstream output_file;
        try {
            output_file.open(file_path_, std::ios::app);
            if (not output_file.is_open()) {
                return false;  // cannot open file
            }
            output_file << formatted_result;
            output_file.close();
        } catch (std::ifstream::failure e) {
            output_file.close();
        }
        return true;
    }

public:
    AppendfileExporter(const std::string& file_path) {
        file_path_ = file_path.substr(6);
    }

private:
    std::string file_path_{};
};

}  // namespace vsag::eval
